You know roughly where your body is at all times, but where in it is your “self”?
Your center of mass is around the solar plexus, yet that doesn’t seem to universally be where people feel the center of their self to be. Most people feel they “are” right behind their eyes, probably in the brain.
Sometimes people have out-of-body experiences, completely changing their anchor for a while.
When pointing at themselves, people tend to point a thumb at their chest or face. Do they feel differently about it, or is it just convenience?
Are you a body with a head full of thinking goop and sensors on top, or are you a head sitting on a body?
And wherever you feel you are, have you felt different at any time? Can you change it?
Personally, I can’t separate the feeling of self from my vision, so “I” am directly behind my eyeballs and I can’t change it.
Spacetime is a lie.